Revert "refactor: flatten dto entity and mapper packages"

This reverts commit 29766ebd28.

src/main/java/com/label/dto/TaskResponse.java

@@ -1,37 +0,0 @@
-package com.label.dto;
-
-import io.swagger.v3.oas.annotations.media.Schema;
-import lombok.Builder;
-import lombok.Data;
-
-import java.time.LocalDateTime;
-
-/**
- * 浠诲姟鎺ュ彛缁熶竴鍝嶅簲浣擄紙浠诲姟姹犮€佹垜鐨勪换鍔°€佷换鍔¤鎯呭潎澶嶇敤锛夈€? */
-@Data
-@Builder
-@Schema(description = "鏍囨敞浠诲姟鍝嶅簲")
-public class TaskResponse {
-    @Schema(description = "浠诲姟涓婚敭")
-    private Long id;
-    @Schema(description = "鍏宠仈璧勬枡 ID")
-    private Long sourceId;
-    /** 浠诲姟绫诲瀷锛堝搴?taskType 瀛楁锛夛細EXTRACTION / QA_GENERATION */
-    @Schema(description = "浠诲姟绫诲瀷", example = "EXTRACTION")
-    private String taskType;
-    @Schema(description = "浠诲姟鐘舵€?, example = "UNCLAIMED")
-    private String status;
-    @Schema(description = "棰嗗彇浜虹敤鎴?ID")
-    private Long claimedBy;
-    @Schema(description = "棰嗗彇鏃堕棿")
-    private LocalDateTime claimedAt;
-    @Schema(description = "鎻愪氦鏃堕棿")
-    private LocalDateTime submittedAt;
-    @Schema(description = "瀹屾垚鏃堕棿")
-    private LocalDateTime completedAt;
-    /** 椹冲洖鍘熷洜锛圧EJECTED 鐘舵€佹椂闈炵┖锛?*/
-    @Schema(description = "椹冲洖鍘熷洜")
-    private String rejectReason;
-    @Schema(description = "鍒涘缓鏃堕棿")
-    private LocalDateTime createdAt;
-}